DOL & Star Delta Starters

A DOL Starter is a Direct-On-line motor starter. Sometimes known as an ’across the line’ starter, this type of motor controller is used as a simple starter for larger electric motors, providing full line voltage to the motor terminals.

At their simplest, DOL Starters act as a stop / start switch for a motor, but DOL starters are often fitted with overload protection devices to prevent short circuits or the motor overheating.

Uses for DOL Starters

DOL Starters are used in a variety of applications where motor driving is required, such as running workshop machinery, large fans or water pumps.

Reversible DOL Starters

The RS Range includes reversible DOL Starters that can run a motor either forwards or backwards. These three button starters are particularly useful for conveyor based machinery, where reversing the direction is sometimes necessary.

Ingress Protection

DOL Starters typically have a moulded plastic body designed to protect the motor starter electrical components from workplace environmental factors. The RS Range includes many DOL starter models that are suitable for the harshest work environments, which is essential when running machinery that results in a dusty environment, such as machine woodworking. There are even ATEX rated DOL starters for environments with explosive risks.

Further Security

Some DOL starters are equipped with securing functions such as key locked buttons. These optional extras are highly useful in preventing accidental or unauthorised activation of a motor, and are available in the RS Range.

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Description Price Power Rating Motor Starter Type Range Voltage Rating IP Rating Current Rating Phase Number of Poles Motor Starter Functionality Reversibility Additional Features Overall Length Enclosure Overall Width
RS Stock No. 535-2261
Mfr. Part No.SDAINLM55(110V50HZ120V60HZ)
BrandEaton
$982.78
Each
units
30 kW Star Delta - 110 V ac IP55 - 3 - Automatic - - 85mm - 158mm
RS Stock No. 609-7511
Mfr. Part No.LC3D18AB7
$1,024.29
Each
units
22 kW Star Delta - 24 V ac - - - 3P - - Mechanical Interlock Included 124mm - 144mm
RS Stock No. 743-5337
Mfr. Part No.LE1M35B707
$140.93
Each
units
0.55 kW DOL - 24 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 609-7533
Mfr. Part No.LC3D32AB7
$1,345.02
Each
units
30 kW Star Delta - 24 V ac - 32 A - 3P - - Mechanical Interlock Included 124mm - 165mm
RS Stock No. 494-6590
Mfr. Part No.D4E/I2/1P+N(230V50HZ240V60HZ)
BrandEaton
$191.43
Each
units
0.75 kW DOL - 400 V ac IP65 - 1 SP + N Automatic - - 180mm Yes 100mm
RS Stock No. 609-3957
Mfr. Part No.LG1K065Q710
$419.73
Each
units
3 kW DOL - 440 V ac IP657 - - 3P Automatic - Disconnect Switch Included 165mm Yes 175mm
RS Stock No. 609-7842
Mfr. Part No.LG1D182Q720
$828.76
Each
units
7.5 kW DOL - 400 V ac IP657 - - 3P Automatic - Disconnect Switch Included 165mm Yes 175mm
RS Stock No. 743-5333
Mfr. Part No.LE1M35B706
$153.18
Each
units
0.37 kW DOL - 24 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 744-7829
Mfr. Part No.LE1M35N705
$220.57
Each
units
0.25 kW DOL - 415 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 609-7707
Mfr. Part No.LE1M35Q708
$186.31
Each
units
1.1 kW DOL - 380 V ac IP65 - - 3P Automatic - - 160mm Yes 78mm
RS Stock No. 811-0795
Mfr. Part No.1TVC400072S5699
BrandABB
$482.48
Each
units
7.5 kW DOL - 400 V ac IP55 - 3 - Automatic Yes - 184mm Yes 184mm
RS Stock No. 394-9526
Mfr. Part No.LE1D09P7
$155.53
Each
units
4 kW DOL TeSys 690 V ac IP657 9 A AC-3 3 - Automatic No - 166mm Yes 88mm
RS Stock No. 272-432
Mfr. Part No.LUCA12BL
$183.84
Each
units
9 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 744-7831
Mfr. Part No.LE1M35N707
$220.57
Each
units
0.55 kW DOL - 415 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 351-4827
Mfr. Part No.LE2GBKO55N7
$366.20
Each
units
5.5 kW DOL - 415 V ac IP65 - - - Automatic Yes - 219mm Yes 214mm
RS Stock No. 859-2960
Mfr. Part No.DAC01CM24
$159.32
Each
units
1.5 W, 4 VA Star Delta - 24 → 240 V ac/dc IP20 - - - Automatic - Automatic Start, Knob Adjustable Time Setting, LED Indication for Relay Status 22.5mm Yes 99.5mm
RS Stock No. 744-7857
Mfr. Part No.LE1M35N722
$183.24
Each
units
7.5 kW DOL - 415 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 272-426
Mfr. Part No.LUCA12B
$193.43
Each
units
9 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
RS Stock No. 743-5343
Mfr. Part No.LE1M35B714
$199.16
Each
units
3 kW DOL - 24 V ac IP65 - 3 3P Automatic - - 160mm Yes 78mm
RS Stock No. 272-454
Mfr. Part No.LUCA05FU
$169.75
Each
units
3 kW DOL - 690 V ac IP40 - 3 3P - - - - - -
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